Compressor package ensures delivery of high pressure ... · • Combined Heat and Power (CHP)...
Transcript of Compressor package ensures delivery of high pressure ... · • Combined Heat and Power (CHP)...
RESULT
• Single source accountability for fuel gas booster package
design and fabrication
• Combined Heat and Power (CHP) cogeneration plant with
4.6MW Combustion Gas Turbine Generator and a Heat
Recovery Steam Generator that produces 90,000 lb/hr of steam
• Essentially pulsation-free fuel turbine gas delivered using Vilter
single screw compressor technology
• Boosted available pipeline gas pressure from 30 psig to 250
psig, independent of supply pressure variations and
turbine demand
• Vilter single screw compressor design prevented bearing load
wear issues associated with high pressure operation
• Enabled reliable onsite power generation that provides 95% of
Campbell Canada’s electricity needs
Compressor packageensures delivery of high pressure turbine fuel gas
APPLICATION
Cogeneration is the simultaneous production of electricity
and useful heat or cooling from a single fuel source.
Electricity produced by a cogeneration system on-site displaces
electricity purchased from the utility. The combined efficiency of
cogeneration (up to 85%) is higher than the separate production
of electricity and thermal energy.
The CHP project at Campbell Canada’s site uses a natural gas
turbine to drive a generator, which produces electricity. The hot
combustion gas is then delivered to a secondary system which
is integral to the CHP plant. Hot exhaust air produced by the
turbine is delivered to a heat recovery steam generator, which
uses the heat energy to produce steam at a pressure which is
suitable for Campbell Canada’s needs.
- Ana Dominguez, President,Campbell Company of Canada
For more than 25 years, Campbell Canadahas implemented energy conservation programs at our Toronto plant. CHPtechnology is the next stepin becoming an even moreenergy-efficient andsustainable company.
CHALLENGE
Campbell Canada is dedicated to driving corporate sustainability.
The company intends to cuts its environmental footprint in
half as measured by water use and greenhouse gas (GHG)
emissions per ton of product produced; and reduce energy
use by 35 percent per ton of product produced and source
40 percent of the energy used by the company from renewable
or alternative energy sources by 2020. The vision extends to
recycle 95 percent of waste generated (on a global basis),
deliver 100 percent of global packaging from sustainable
materials (renewable, recyclable or from recycled content),
and reduce water use by 20 percent and reduce the carbon
footprint for tomatoes and vegetables by 20 percent.
A Combined Heat and Power (CHP) plant was suggested that
could efficiently produce the electricity and steam needed at
the plant. One critical project challenge was the need for higher
pressure fuel gas than was available from the local pipeline.
An additional requirement of the fuel gas booster is rapid
responsiveness to variations in pipeline gas pressures in order
to supply the required volume of gas at a constant pressure.
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SOLUTION
Campbell Company of Canada installed a Combined Heat and
Power (CHP) project at its production facility in Etobicoke.
Campbell’s CHP system incorporates a turbine with an
Emerson Fuel Gas Booster to feed pressurized natural gas into
the turbine to generate power. The fuel gas booster package
uses a Vilter VSSG-601 screw compressor to compress 1300
cfm of natural gas from ~30 psig to 250 psig to feed the
turbine in the CHP system at 300 bhp. The hot combustion
gas is then delivered to a secondary system which is integral
to the CHP plant.
Hot exhaust air produced by the turbine is then delivered to
a heat recovery steam generator, which uses the heat energy
to produce steam at a pressure which is suitable for Campbell
Canada's needs.
The power output of the generator is 4.6MW, and the steam –
which is used for cooking the manufactured soup product –
is generated at a rate of up to 90,000 lb/hour, at 165 psi.
The CHP plant now supplies up to 93% of the company’s
annual steam requirements.
Emerson was able to apply its extensive experience in
engineering screw compressor systems for fuel gas boosting
to deliver a pre-packaged solution. The single screw
compressor solution achieved high energy efficiency using
the Vilter Parallex™ slide system. The unique ability to vary
capacity and volume ratio independently enabled the
compressor to run at optimum efficiency across all operating
and part-load conditions.
The key to the single screw compressor’s reliability is in its
balanced design. At the core of this positive displacement
rotary compressor is a single main rotor intermeshed with
two opposing gate-rotors. This unique and balanced design
results in ultra-low bearing loads with significantly decreased
vibration and sound levels.
CUSTOMER
The Campbell Company’s plant in the west-end of Toronto
opened in August 1931 and produces more than 12.5 million
cases of soup annually. Two-thirds of Campbell Canada’s
ingredients (fresh carrots, potatoes and mushrooms) come from
within three hours’ drive of the plant and is the first Campbell
Plant in North America producing an aseptic carton product.
RESOURCES
Learn more about the Vilter single screw compressors at:
EmersonClimate.com/Vilter